#include<stdio.h>
#include<unistd.h>
#include<string.h>

int  main(){
	fprintf(stdout,"C:hello fprintf\n");
	printf("C:hello printf\n");
	fputs("C:hello fputs\n",stdout);
	const char * str="system call:hello write\n";
	write(1,str,strlen(str));

	//会由bash回收
	fork();
	return 0;
}
